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Crystal structure of 3-deoxy-D-manno-octulosonate 8-phosphate synthase (KDO8PS) from neisseria meningitidis

Analyse Crystal structure of 3-deoxy-D-manno-octulosonate 8-phosphate synthase (KDO8PS)… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
2QKF
Type
protein
Length
1,011 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
3-deoxy-D-manno-octulosonic acid 8- phosphate synthetase
EC
2.5.1.55
UniProt
Q9JZ55
Ligands
NA, CL
Pockets
12 · best druggability 0.69

Structure

x-ray diffraction · 4 distinct chains · 43% helix, 21% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A3-deoxy-D-manno-octulosonic acid 8- phosphate synthetase (EC 2.5.1.55)protein25144% helix, 21% strandQ9JZ55
B3-deoxy-D-manno-octulosonic acid 8- phosphate synthetase (EC 2.5.1.55)protein25142% helix, 21% strandQ9JZ55
C3-deoxy-D-manno-octulosonic acid 8- phosphate synthetase (EC 2.5.1.55)protein25643% helix, 22% strandQ9JZ55
D3-deoxy-D-manno-octulosonic acid 8- phosphate synthetase (EC 2.5.1.55)protein25343% helix, 21% strandQ9JZ55

Ligands and binding sites

  • NA · Sodium ion · metal · chains C
  • CL · Chloride ion · ion · 5 copies · chains B, D, C
  • GOL · Glycerol · additive · 4 copies · chains C, D, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

12 pockets found on a 1 Å grid, 9 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
13970.690.8144CL
23830.680.8139empty
33850.680.8141empty
43780.680.8143CL
51660.620.8424empty

Interfaces

6 interfaces between chains.

  • A–C · 1557 Ų buried · 31 hydrogen bonds · protein-protein
  • B–D · 1514 Ų buried · 25 hydrogen bonds · protein-protein
  • A–B · 1339 Ų buried · 3 hydrogen bonds · protein-protein
  • C–D · 1331 Ų buried · 6 hydrogen bonds · protein-protein
  • B–C · 205 Ų buried · 0 hydrogen bonds · protein-protein

Compared structures

  • 2QKF · Crystal structure of 3-deoxy-d-manno-octulosonate 8-phosphate synthase (KDO8PS) from… · the same entry in another collection · chain D against D, TM-score 1.00
  • Q9JZ55 · AlphaFold monomer V2.0 prediction for 2-dehydro-3-deoxyphosphooctonate aldolase (Q9JZ55) · a predicted model of the same protein · chain D against A, TM-score 0.99

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